@Luindriel @PrincipalArc Every assessment no matter the design will have error variance the goal is to limit this. #njed
In reply to https://twitter.com/Luindriel/status/380129840273559552
@Luindriel @PrincipalArc Every assessment no matter the design will have error variance the goal is to limit this. #njed
By Greg McVerry · Permalink · Original tweet
